Furnace wall



L. W. HELLER FURNACE WALL Nov. 3, 1931.

Filed Aug. 2l. 1928 FIGB.

AF'I G. 1.

FIGS.

INV NTOR ATTORN E Patented Nov. 3, 193i stica LEWIS HELLER, F OAKHARBOR, OHIO, ASSIGNOR T0 FULLER ILJ'IEIIGIIA COMPANY,

0F FULLERTON, PENNSYLVANIA, A CORPORATION OF DELAWARE i FURN'CE WALLApplication mea August ai, 192s. seriai No. 301,057.

This invention relates to a furnace wall having sections that aremovable relative to each other and in which provision is ymade forpreventing ash or cinders from collecting in the joint between thesections. The invention will be understood from the description inconnection with the accompanying draw,- ings in which Fig. 1 is a sideview, partly broken away, observed from the inside of the furnace; Fig.2 is a vertical section, partly` broken away through the furnace wall;Fig. 3 is a perspective view of one of the special blocks or tile; andFig. 4: is a perspective view of a support for the block or tile.

ln the drawings, reference character 1 indicates a section of a furnacewall which may be near the lower edge of the wall and may be stationary.Another section of the wall is shown above the section 1 and may be madeup of a row of water tubes carrying blocks or tile, this section beingsupported independently of the lower section and free to move toward andaway from the same due to expansion and contraction. rll`he tubes 2 ofthe water wall have their lower ends bent outwardly, as shown at 3, andare connected to a horizontal header 4.- on the outside of the furnacewall. Blocks or tile 5 are connected to the tubes 2 by clamps 6 withbolts 7 connecting the tile 5 and the' clamps in the well known way. Thetile 5 may be made up with metal backs that have curved surfacescontacting with the tubes 2 and refractory face portions that areexposed tothe heat of the furnace.

The upper edge of the wall section 1 is` made sloping as indicated at 8and a :flexible distance therefrom to permit expansion ofV the uppersection of the wall. One of the supports 10 for the special blocks'ortile is 1 mostclearly shown in Fig. 4.. Each support 1s provided wlthcurved portions 11 to be clamped into firm engagement with the tubes. A.plate 12 extends outwardly toward the inside of the furnace from thelower edge of the support 10 and the free inward edge of the plate 12 isprovided with an upwardly extendmg lip or extension 13. An extension 14that is T-shaped in cross section projects from. the face of the support10 toward the inside ofthe furnace and is disposed in a verticallyextending direction at an angle to the horizontal' when the support l0-is in place.

@ne of the special blocks or tile 15 that is to be installed in the rownear the upper edge of the section l of the furnace wall is most clearlyshown in Fig. 3. Each one of the special tile or blocks 1s provided witha flat back portion that fits against the front face ofthe support 10.Each special block is of an approximate V-shape having a front face 16that is vertical and in line with the inner face of the section 1 whenthe blocks are in place, as most clearly indicated in Fig. 2. The lowerend of the block 17 is somewhat pointed and the bottom of the block isHat and approximately parallel with the sloping surface 8 of the section1 when the biocliis in place. A recess 18 is provided in the bottom ofeach block into which the corresponding plates l2 and lips 13 of thesupports 10 iit when the blocks areinstalled. Each block is providedwith a 'lV-shaped recess 19 into 'which the corresponding extensions 14fit.

llt will be obvious from an inspection of Figs. 3 and 4f that the blocks15 can be put in place on the supports 10 by moving the same downwardlyVfor the extensions 14 to t into the grooves 19 and the plates. l2 andlips13 tot into the recesses 18, thus holding the blocks securely inposition by means of the supports 10, and at the same time making-itpossible to remove them very readily for replacement when injured or'broken.

With the capor joint between the two sections of the furnace wallsloping downwardly, as most clearly shown in Fig. 2, it will .3c clearthat any ash or cinders that may be ,caught in ythis space .will workdownwardly and into the 'furnace as expansion andcon- Itraction takeplace between the sections, and

thatthedanger of the joint becoming permanently clogged with the ash andcinders is eliminated.

5 The upper surface of the blocks 15 may be made horizontal so that thenext row of blocks may rest thereon, and the blocks that are attached tothe curved portions of the tubes 2 may be so shaped that a flat surfaceis presented to the inside of the furnace.

I claim:

1. In a furnace, a wall section and a second wall section above saidrst-named wall section, one of said wall sections being movable relativeto the other, adjacent portions of said wall sections forming a spacedownwardly inclined toward the Jfurnace to prevent ash or clinker fromcollecting between said wall sections.

2. In a furnace, a wall section, and a second wall section above saidfirst-named wall v section, one of said wall sections being movablerelative to the other, one of said wall sections being water-cooled,adjacent portions of said wall sections forminga space downwardlyinclined toward the furnace to prevent a'sh or clinker from collectingbetween said wall sections.

. 3. In a furnace, a wall section and a second wall section above saidfirst-named wall section, one of said wall sections being movablerelative to the other, adjacent portions of said wall sections forming aspace downwardly inclined toward said furnace to prevent ash or @linkerfrom collecting between said sections, the upper portion of said secondwall section comprising. a block having a portion of its upper surfaceextending downwardly and inwardly toward the furnace.

' 4. In a furnace, a wall section, a second wall section above saidfirst-named wall section comprising tubes and tile attached thereto,said wall sections being spaced apart'and independently supported,adjacent portions of said sections forming a space extending downwardlyinto a free space to prevent ash or clinker from collecting between saidsec# tions, and means to prevent gas leakage from taking place throughsaid space.

\ LEWIS W. HELLER.

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